Spool head



@Ummm WL n l'lm F. c. BIRKHQLTZ spoorl HEAD Filed Maren 10. 1926 lll'mtented` Jam 10, 1928.

UNITED STATES- `PATENT oFrlCr-J.

:FRED CARL BIRKHOLTZ, 0F MECERVILLE, NEW JERSEY, ASSIGNDR T0 THERM'ID RUBBER C01H:IAlhl'Y, 0F HAMILTUN TOWNSHIP, NEW JERSEY, A. CDRPCDBATIDN Gili' new anneau.

srooL nnen,

Appucauon meenam 10,1926. 'serai No. 93,722.

The object ot my invention is to improve the 4construction of the head o 'lspools used in mills for Winding rovings and other fibres. 'llhese spools are usually large and are subf jected to rough usage.

The invention 1s especially adapted for use in spools known as jack spools, upon which y the rovings are wound as they come from the lll lllll to the edge ol the body portion and the entire head is laced in a mold and imlcaniued'.`

The solid ru ber edge is made oil' pliable rubi ber and'is preferably rounded as shown.

It has been found that a spool-head made in the manner described will. withstand con sderable rough usage, and a spool can be dropped upon ahard floor Without liatteuin or otherwise distorting the edge ol' the spoo 9 and as, the body ol the head is a laminated structure of fabric and rubber, it will not Warp out of shape or crack.

l. A. head folta spool made of abricand rubber composition and having a peripheral portion of pliable rubber, integral with the Fig.. #i is an enlarged sectionalview illush ad 'trating the rubber edge. f

The spool is of the ordinary shape and size and has two heads 1--1 connected by a body spindle Q. lEach bead has a body portion inade of a series of vuleanizable comosltion 4 such as rubber, the rubber and abrio being built up -ply upon eply until 'the head is of the thickness desir ,then the. solid rubber edge 5 secured plies of fabric 3, and av 2. A head for a spool having a body` portion made of a series of pliesof fabric and `vulcanizable rubber composition, and an in tegral pliable `rubber edge encircling the body portion, the bo'dy portion andthe rub ber of the edge being moulded into shape and vulcanized.

v FRED CARL BIRKHOL'IZ. 

